Position adjustment leg for partition panel assembly

ABSTRACT

An open office system partition panel assembly including a panel having an outwardly opening wire raceway channel on top with a removable cap to permit wires to be laid in the top raceway channel. End wire raceway channels open away from the core of the panel and each has a panel connector support rail closing its opening. The wire raceway channels form a steel frame of box section strength for the panel and all metal-enclosed, non-snagging wire raceways from the top to the base of the panel. Legs formed as part of the panel base support the panel connector support rails. Wire passageways extend from the panel base to the end wire raceway channels. The panel base has an end section fastened to and supported on each leg. Upper panel connectors facilitate the connection of panels, improve the rigidity of the connection between panels and provide positive locking for the panel connection, both vertically and horizontally. The middle section, which fastens to and is supported on the end sections, may be omitted when electrical wiring is not installed in the panel base. A snap-in divider separates the raceway of the panel base into upper and lower wire conduits.

This is a divisional of copending application Ser. No. 07/275,718 filedon Nov. 23, 1988 now abandoned.

BACKGROUND AND SUMMARY OF THE INVENTION

This invention is concerned with an open office partition system.

An object of this invention is a panel for an open office partitionsystem having a large capacity, easily accessible top channel in whichwires can be laid after removal of a top cap.

Another object of this invention is a panel for an open office partitionsystem having a steel frame of box section strength that can be weldedtogether.

Another object of this invention is a panel having a metal frame thatprovides wire raceways around the top and sides of the panel.

Another object of this invention is a panel having a metal frame thatprovides all metal-enclosed wire raceways from the top of the panel tothe base assembly of the panel.

Another object of this invention is a panel having a metal box-shapedframe with heavy steel rails closing the ends of the vertical channelsto provide support for shelf, cabinet and desk brackets and panelconnectors.

Another object of this invention is a panel having a metal box framewith intersecting top and side channels forming wire raceways, withnon-snagging intersections between the channels.

Another object of this invention is a panel assembly having legs whichdirectly support the panel and also support the heavy steel railsclosing the vertical raceways on the ends of the panel.

Another object of this invention is a base for a panel which provideswire pass-throughs from the base assembly to the vertical raceways.

Another object of this invention is a connector for open officepartition system panels which facilitates the connection of panels,improves the rigidity of the connection between panels and providespositive locking for the panel connection, both vertically andhorizontally.

Other objects of this invention will be found in the followingspecification, claims and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is illustrated more or less diagrammatically in thefollowing drawings wherein:

FIG. 1 is a partial, side elevational view of a pair of partition panelsembodying the novel features of this invention shown in an unconnectedposition, with the connectors shown in an exploded relationship to thepanels and one another and some parts broken away for clarity ofillustration;

FIG. 2 is an end elevational view of one of the panels of FIG. 1;

FIG. 3 is an enlarged, cross-sectional view taken along line 3--3 ofFIG. 1;

FIG. 4 is an enlarged, cross-sectional view taken along line 4--4 ofFIG. 2;

FIG. 5 is an enlarged, end elevational view of a leg;

FIG. 6 is a side elevational view of the leg of FIG. 5;

FIG. 7 is a top plan view of the leg of FIG. 5;

FIG. 8 is an enlarged top plan view of a base end and supporting leg;

FIG. 9 is an enlarged, partial top plan view of the bottom channel of apanel;

FIG. 10 is a side elevational view of a base assembly with a centersection installed;

FIG. 11 is a top plan view of the base assembly of FIG. 10;

FIG. 12 is an end elevational view of the base assembly of FIG. 10;

FIG. 13 is a partial top plan view of one end of a base panel wiredivider partition; and

FIG. 14 is an enlarged, end elevational view of a base panel housingcenter section of FIG. 10.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 of the drawings shows a pair of partition panels 11 of thisinvention positioned end to end and ready to be connected with thevarious connector elements shown in an exploded relationship to oneanother and to the panels. The partition panel 11 is of the type that isinstalled in what is called an open office system partition wall, whichpartition walls are conventionally free-standing and terminatesubstantially short of the ceiling in the building in which they areinstalled.

The partition panel 11 of this invention includes a frame 13 surroundinga core 15, with the core and frame normally covered by a decorativecovering 17, which may be a fabric or other material suitable as a wallor furniture covering.

The core 15 includes an inner member 19 of honeycombed paper which iscovered on both sides by a skin 21, which in this embodiment is aperforated wood fiber hardboard sheet. As is conventional, the skin isattached to the honeycomb inner member through the use of a suitableadhesive. If desired, instead of a perforated hardboard skin, aperforated cold-rolled steel sheet may also be used. For soundproofingpurposes, a layer of glass fiber 23 is attached to the exterior sides ofthe skin 21. The decorative covering 17 is applied to the exterior ofthe fiberglass and is held by metal fabric retainers 25 to be describedhereinafter.

The frame 13 of this panel 11 is formed of rolled strip steel incontrast to frames of previous partition panels which have been madefrom aluminum extrusions backed up with a tubular steel ring ofrectangular cross-section. The rolled strip steel frame of thisinvention consists of top and bottom channels 31 and end channels 33which are welded to one another, the top channel being shown in FIG. 3of the drawings, and the end channels 33 being shown in FIG. 4 of thedrawings. All channels are formed as deep, box-shaped structural membersproviding large capacity raceways for wires. The top and bottom channels31 are formed with bent tabs 35 at the ends thereof, as shown in FIGS.1, 3 and 9, which tabs fit into the end channels 33 where the top,bottom and end channels intersect to form raceways that are non-wiresnagging. The top channel 31 opens upwardly to permit communicationwires to be laid in the channel and is closed by a cap 37. The bottomchannel 31 rests on the base assembly 41 and is normally not used as awire raceway, although it is available for such use.

The end channels 33 open away from the core 15, and they are providedwith panel connector support rails 43 closing their side but not top andbottom openings. The panel connector support rails 43 are also rolledfrom steel sheets of a heavier gauge than that used for the top, bottomand end channels of the frame and are welded to the end channels. Formedintegrally with the rails 43 on opposite sides of the panel are flanges45 which function as standards for shelf, cabinet and desk brackets (notshown), which are conventionally installed between and supported on thepanels of an open office partition system. As shown in FIG. 1 of thedrawings, the flanges 45 each have a row of aligned slots 47 formedtherein, which slots receive the hooks of conventional shelf, cabinetand desk brackets. In order to use conventional shelf brackets, whichwere designed for use with aluminum extrusions having much greater wallthicknesses than those of the flanges 45 of the rolled steel connectorsupport rails 43 of this invention, outwardly protruding dimples 49 areformed in the flanges between the slots 47. Through use of theprotruding dimples, the flange 45 has an effective thickness forsupporting shelf, cabinet and desk brackets equivalent to that of thepreviously used aluminum extrusions.

As can be seen most clearly in the exploded view of FIG. 1 and the endview of FIG. 2, a pair of partition panels 11 can be connected in anend-to-end alignment using a pair of top connectors 57, which are newand are a part of this invention, a bottom connector 59, which is amodified form of a connector which has been used before, and a clamp nut61 which has also been used before.

Each top connector 57 consists of an elongated body 65 of U-shaped,transverse cross-section having an end wall 67 connecting two side walls69, with the side walls having opposite end edges 71 which arepositioned in contact with the panel connector support end rail 43. Anupwardly opening hook 73 extends rearwardly from the end edge 71 of eachconnector side wall at the upper end thereof to fit into a pair ofspaced slots 74 formed in the panel end rail 43. A tab 75 extendsinwardly and downwardly from the end wall 67 to engage the panelconnector rail 43. An opening (not shown) is provided in the tab toreceive a fastener 77, shown in FIG. 2, to attach the tab to the panelconnector support end rail 43.

A small rectangular projection 79 extends outwardly from the end wall 67of each connector 57. A slot 81, complementary in size and shape to theprojection 79, is also formed in the end wall of the connector, with theprojection and slot being located symmetrically relative to each otherabout a vertical centerline extending through the end wall of theconnector. A rearwardly-bent tab 83 is formed on the top edge of the endwall to receive the jaws 85 of the clamp nut 61.

When the panels 11 are connected together, the end wall 67 of oneconnector 57 will engage the end wall 67 of the other connector 57, withthe projection 79 of one connector fitting into the slot 81 of theopposite connector to align the panels, provide rigidity for theconnection and provide positive locking of the connectors, bothvertically and horizontally. When the connectors are in contact witheach other, the clamp nut 61, which is a commercially-available itemmanufactured by Simmons Fastener Company, is lowered over therearwardly-facing tabs 83 and the clamp jaws 85 are brought together byoperation of its eccentric nut 87 to hold the connectors together. Akeyhole slot 89 is provided in the end wall of the connector 57 formounting an end cap if the panel is not connected to another panel.

The bottom connector 59 has an H-shaped, transverse cross-section with apair of downwardly-extending blades 91 on one end and a pair ofupwardly-extending blades 93 on the opposite end. At installation, thedownwardly-extending blades 91 are inserted in slots 95 formed in therail 43 of one panel and the other panel is then tilted and mounted onthe upwardly-extending blades 93, which also fit in similar slots 95 inthe other panel.

The base assembly 41, which is shown in FIGS. 1, 2 and 5 through 14 ofthe drawings, may be used to support panels that are wired and panelsthat are not wired. When used with unwired panels, parts of the baseassembly may not be installed to reduce the cost of the panel. Theembodiment shown in FIGS. 1 and 2 is intended for use with an unwiredpanel and the center section is omitted. The base assembly includes apair of base end sections 97, each located at the end of a panel andspaced apart from the other. Each end section 97 includes a pair ofelongated, channel-shaped housings 101, each having a top wall 103, abottom wall 105 and a back wall 107. The channel-shaped housings arefastened together with their back walls abutting to form a base endsection 97 having a center dividing wall and open sides. Adownwardly-extending lip 108 is formed at the outer edge of each topwall 103 and an upwardly-extending lip 109 is formed at the outer edgeof each bottom wall 105. As can be seen most clearly in FIGS. 1 and 8 ofthe drawings, the back walls 107 do not extend the full length of theend section but terminate short of the outside longitudinal end so asnot to interfere with the installation of a leg 111 near the outsidelongitudinal end of the base end section 97. The leg rests on the bottomwalls 105 of the housings 101 and extends through an opening 113 formedin the top walls 103 of the housings 101. The opening 113 is elongatedlongitudinally inwardly of the leg 111 terminating at the outer end ofthe back walls 107 and outwardly slightly beyond the leg. This openingprovides clearance for the passage of wires from the base assembly 41into the bottom channel 31 and the vertical end channels 33 of the panel11, as can be seen in FIGS. 8 and 9, and also permits the panelconnector support rails 43 to be contacted by the legs 111. The wirescan be extended through the opening 113 into the channel 31 and upwardlyoutwardly of the bent tab 35, as shown in FIG. 9, into the vertical endchannel 33. Upstanding tabs 114 are formed in the top walls 103 at theinside end of the opening 113. These tabs engage the walls of the bottomchannel 31 of the panel frame 13 to stabilize the panel 11. An elongatedslot 115 is formed in the top wall 103 and bottom wall 105 of eachhousing 101 adjacent the inside end of each end section 97 to receivefastening tabs to receive a center section 99 which is used when wiringis to be installed in the panel.

The base center section 99, shown in FIGS. 10 to 14, is constructed in amanner similar to an end section 97, but is much longer. It includes apair of elongated, channel-shaped housings 101A, each having a top wall103A, a bottom wall 105A and a back wall 107A. The channel-shapedhousings are fastened together with their back walls abutting to form abase center section 99. A strengthening fold 116 is formed along theouter edge of each top wall 103A and an upwardly-extending lip 109A isformed at the outer edge of each bottom wall 105A. Upwardly anddownwardly-extending tabs 117 are formed in each top wall 103A andbottom wall 105A to be received in the slots 115 formed in the endsections 97 to connect the center section 99 to the end sections 97 ofthe base assembly in a snap-together arrangement when the center sectionis telescoped into the end sections. The sections are also held togetherby one or more screws 118 which extend through openings formed in theend and center sections, as best seen in FIG. 10 of the drawings.However, the primary function of the screw or screws is electricalgrounding, not fastening, since the tabs and slots are adequate toconnect the center section to the end sections.

Each leg 111 is formed of heavy gauge steel having a generally U-shaped,horizontal cross-section, as can be seen most clearly in FIGS. 7 and 8of the drawings. Each leg includes an end wall 119, shorter sides walls121 and an essentially open opposite end wall 123. The end wall 119faces the outer end of the base assembly 41, while the open end wall 123faces the interior of the base assembly. The end wall 119 is dimensionedso that it extends above the base assembly and into the end channels 33of the frame 13 where it is adjacent the panel connector support rail43. A pair of triangular-shaped, stamped ledges 125 are formed on theend wall 119 to engage and support the panel connector support rail 43of the frame. The ledges extend through the opening 113 formed in thetop walls 103, as shown in FIG. 8. Feet 129 are formed at the bottom ofthe leg to rest on and are welded to the bottom walls 105 of the baseassembly end section 97, as seen in FIGS. 1, 2 and 12 of the drawings.An inturned portion of the end wall forms a bottom of the leg.Outwardly-extending loops 133 are formed in the side walls 121 of theleg. A pair of brackets 135 are formed at the top of the side walls 121to engage the top wall 103 of the end section 97 of the base assembly41, as seen in FIGS. 1 and 2 of the drawings. As can also be seen in thedrawings, the inner end 123 and top of each leg 111 ar open and channelshaped to permit the pull through of wires from the base assembly intothe end channels 33 of the panel 11.

A glide 137, shown in FIGS. 1 and 2 of the drawings, is provided in eachleg 111 to raise and lower the leg for leveling purposes. Each glideincludes a threaded rod 138 which threads into a weld nut 139. A steelreinforcing member 141 having a wall of U-shaped cross-section fitsinside the leg 111 and is welded to the end wall 119 of the leg, thebottom walls 105 of the housings 101 and the weld nut 139 to stabilizethe threaded rod 138 of the glide. Fasteners 143, shown in FIG. 2,attach the end wall 119 of the leg to the panel connector support rail43.

When wiring is not to be installed in a panel 11, it is not necessary toprovide a center section 99 in the base assembly 41. In suchinstallations, as shown in FIGS. 1 and 2 of the drawings, only base endsections 97 are installed. The end sections provide mounting means ateach end of the panel for base panel side covers 155 which extend thefull length of the panel. The space between base end sections is leftunused.

A horizontal divider partition 141, shown in FIGS. 10 through 13 of thedrawings, may be provided for each side of the base assembly 41 formedof end sections 101 and center section 101A to divide the housing intoupper and lower raceways for wires. Usually the upper raceway 143 isused for power wiring and the bottom raceway 145 is used forcommunication wiring. The divider partition 141 is equipped withdown-turned tabs 147 at its ends, which tabs fit into the loops 133formed on the legs 111 to support the partition. Upwardly-extending tabs149 are also formed on the divider partition to cooperate withdownwardly-extending tabs 151 formed in the top wall 103A of the centersection 99 of the channel-shaped housing 101. The downwardly andupwardly-extending tabs are furnished with screw holes so that powerreceptacles and wiring can be fastened to the tabs. Each partition 141is notched at 153 adjacent the legs 111 to provide access for wiresbetween the upper and lower raceways 143 and 145, respectively. Aconventional side cover 155 of the type shown in FIGS. 1 and 2 enclosesthe outer walls of the channel-shaped housings 101, and these covers areheld in place by horizontally-extending spring clips (also not shown)which must be depressed with a screwdriver to release the side covers.

The top channel cap 37, shown in FIGS. 1, 2 and 3 of the drawings, isformed of wood or medium density fiberboard and has metal clips 161fastened to the underside of the cap at spaced locations along thelength thereof. Each clip has an offset elongated portion 163 thatextends transversely of the cap. Downwardly-extending, bent tabs 165 atthe ends of the elongated portion 163 fit into slots 167 in ahorizontally-extending lip 169 formed as part of the top channel 31 tolock the channel cap to the top of the panel.

We claim:
 1. A leg for supporting an open office partition panel and abase assembly for such a panel, said leg including:end and side wallsforming an upstanding structure of generally U-shaped horizontalcross-section, laterally-extending feet formed at the bottom of saidside walls, laterally-extending brackets formed at the top of said sidewalls, the bottom of said end wall bent to extend horizontally betweensaid side walls to form a bottom wall, said end wall projectingsubstantially above said side walls, ledges formed on said end wall, andmeans to receive a threaded glide formed at the bottom of the walls. 2.The leg of claim 1 in which said means to receive a threaded guideincludes a threaded weld nut fastened to the underside of said legbottom wall and means to reinforce said leg bottom wall, saidreinforcing means including an upstanding member of U-shaped, horizontalcross-section positioned inside said leg on said bottom wall andfastened to said bottom wall and said leg.